void init_cv_( int *iunit, char *filnam, char *header, int *max_header, 
        int *count, int lenFILNAM, int lenLINE );
  
void close_cv_( int *iunit );

int rdpdb_( int *iunit, char *header, float *x, float *y, float *z, 
        int *resno, char *resnam, int *atono, char *atonam, char *chain, 
        int lenLINE, int lenID1, int lenID2, int lenID3 );
